Question
Why are gaps left between successive rails on a railway track ?
✓
Answer
The rails of railway track are made of steel. While laying the railway track, a small gap is left between the two successive length of rails. The reason is that the rails expand in summer. The gap is provided to allow for this expansion. If no gap is left, the expansion in summer will cause the rails to bend sideways. This may result in a train accidents.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the following diagrams, measure and write the angle of incidence and draw the reflected ray in each case.
State two uses of a plane mirror.
State which expands more, when heated to the same temperature : solid, liquid or gas ?
Why are small gaps left in between the rails?
Why using an overflow jar, a measuring jar and water, explain how will you find volume of a glass stopper.
In the following diagrams, measure and write the angle of incidence and draw the reflected ray in a given case.
A boy travels with an average speed of $10\ m\ s^{-1}$ for $20$ min. How much distance does he travel?
→The temperature of water in a bucket is 40 °C. Find its , value in the SI unit.
A force of 15 N causes a displacement of 5 m in its own direction. What is the magnitude of work done?
What are conditions for the transmission of sound?